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Hot air drying method for undyed yarn

The technology of hot air drying and hot air drying machine is applied in the field of yarn printing and dyeing, and can solve the problems of high energy consumption, macular generation on the cloth surface, low energy consumption and production efficiency, etc.

Active Publication Date: 2021-01-15
GUANGDONG ESQUEL TEXTILES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Based on this, it is necessary to provide a hot-air drying method for undyed yarn with high yarn quality, low energy consumption and high production efficiency in view of the problems of high energy consumption and easy generation of yellow spots on the cloth surface in the existing drying methods

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Hot air drying method for undyed yarn

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Effect test

Embodiment 1

[0036] This embodiment is a hot-air drying method for undyed yarns. The undyed yarns are yarns that have only been pre-treated before the dyeing process, and are usually called white yarns. The directly obtained undyed yarn is dried with hot air using a GALVANIN hot air dryer, including the following steps:

[0037] (1) Obtain undyed yarn and place it on a hot-air dryer, and carry out temperature-raising treatment on the undyed yarn. The process of the temperature-raising treatment is: under the condition of a pressure of 6.5Bar, the The temperature of the air inlet is raised to 110°C, and the heating time is 10 minutes.

[0038] (2) heat preservation treatment is carried out on the undyed yarn after the temperature rise, the process of the heat preservation treatment is: drying for 60 minutes at a pressure of 6.5 Bar and an air inlet temperature of 110° C. of the hot air dryer.

[0039] (3) Perform cooling treatment on the undyed yarn after heat preservation, the process of ...

Embodiment 2

[0042] This embodiment is a hot-air drying method for undyed yarns. The undyed yarns are yarns that have only been pre-treated before the dyeing process, and are usually called white yarns. The directly obtained undyed yarn is dried with hot air using a GALVANIN hot air dryer, including the following steps:

[0043] (1) Obtain undyed yarn and place it on a hot-air dryer, and carry out temperature-raising treatment on the undyed yarn. The process of the temperature-raising treatment is: under the condition of a pressure of 4.5Bar, the The temperature of the air inlet is raised to 95°C, and the heating time is 12 minutes.

[0044] (2) heat preservation treatment is carried out on the undyed yarn after heating, the process of heat preservation treatment is as follows: drying for 80 minutes at a pressure of 4.5 Bar and an inlet air temperature of 95° C. of the hot air dryer.

[0045] (3) Perform cooling treatment on the undyed yarn after heat preservation, the process of the cool...

Embodiment 3

[0048] This embodiment is a hot-air drying method for undyed yarns. The undyed yarns are yarns that have only been pre-treated before the dyeing process, and are usually called white yarns. The directly obtained undyed yarn is dried with hot air using a GALVANIN hot air dryer, including the following steps:

[0049] (1) Obtain undyed yarn and place it on a hot-air dryer, and carry out temperature-raising treatment on the undyed yarn. The process of the temperature-raising treatment is: under the condition of a pressure of 7 Bar, heat the hot-air dryer The wind temperature rises to 115°C, and the heating time is 8 minutes.

[0050] (2) heat preservation treatment is carried out on the undyed yarn after the temperature rise, the process of the heat preservation treatment is: drying for 40 minutes at a pressure of 7 Bar and the inlet air temperature of the hot air dryer at 115°C.

[0051] (3) Perform cooling treatment on the undyed yarn after heat preservation, the process of th...

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Abstract

The invention relates to a hot air drying method for non-dyed yarn. The hot air drying method for the non-dyed yarn comprises the following steps that the non-dyed yarn is obtained and arranged on a hot air dryer and subjected to temperature rise treatment; the non-dyed yarn obtained after temperature rise is subjected to heat preservation treatment; the non-dyed yarn obtained after heat preservation is subjected to cooling treatment; and the air outlet detection temperature of the hot air dryer is 75 DEG C. According to the hot air drying method for the non-dyed yarn, through reasonable control over temperature technology parameters in the hot air drying process, the water in the non-dyed yarn can be evenly evaporated in time, the problem about weak spots is solved, and the inner-layer yarn can be rapidly and thoroughly dried. Thus, the yarn production quality is guaranteed, meanwhile, energy consumption is effectively reduced, and the production efficiency is improved. The non-dyed yarn is excellent in quality, the cloth face is free of yellow spots, and in other words, the quality problems about yellowing, yellow circles and the like are solved.

Description

technical field [0001] The invention relates to the technical field of yarn printing and dyeing, in particular to a hot air drying method for undyed yarn. Background technique [0002] In the yarn printing and dyeing process, the yarn needs to be dried. Process control in the drying phase has an impact on yarn quality. Yarn drying is mainly divided into high-frequency drying, hot air drying, etc. according to the type of dryer; according to the type of yarn, it is divided into package yarn drying and loose yarn drying. At present, high-frequency cheese drying requires about 500KW·h / t yarn to 600KW·h / t yarn, which consumes a lot of energy. The hot air drying package yarn needs about 300KW·h / t yarn to 350KW·h / t yarn. The treated yarn (usually called white yarn) will produce quality problems such as yellowing and yellow circles during the drying process. After weaving with the above-mentioned undyed yarn after drying, the cloth surface will produce yellow spots. Contents o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F26B21/10D06B15/00
CPCD06B15/00F26B21/10
Inventor 苏海荣鲁超
Owner GUANGDONG ESQUEL TEXTILES CO LTD
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